Harsco Industrial P-K THERMIFIC N700 Installation & Owners Manual page 13

appliances only. Do not use these venting materials for venting liquid or solid fuel (such as oil,
kerosene, wood or coal) appliances
Maintain clearances to combustibles as listed in the vent manufacturer's installation instructions or as
set forth in the codes and standards listed in this section.
Do not use these vent pipes for incinerators of any sort.
Table of Applicable Vent Materials by P-K THERMIFIC
Model
United States
N700-N1000
N1500-N2000 On-Off
N1500-N2000 LHL
N700-N2000 Sealed Combus-
tion
Canada
N700-N1000
N1500-N2000 On-Off
N1500-N2000 LHL
N700-N2000 Sealed Combus-
tion
3.5.2 Combustion Air
Combustion air must be free from dust, lint, etc. The presence of such materials in the air supplied to the
burner could cause nuisance "Low Air" shutdowns or premature burner failure. The boiler should not be
operated during construction while the possibility of drywall dust, demolition dust, etc. exists.
The combustion air supply must be completely free of chemical fumes which may be corrosive when
burned in the boiler. Common chemicals which must be avoided are fluorocarbons and other
halogenated compounds, most commonly present as refrigerants or solvents, such as freon,
trichloroethylene, perchloroethylene, chlorine, etc. These chemicals, when burned, form acids which
quickly attack the boiler and the boiler stack. The result is improper combustion and premature boiler
failure.
pressure. Particular care should be taken when exhaust fans, compressors, air-handling units or other
equipment may rob air from the boiler. Note that this equipment might be in rooms other than the boiler
room.
3.5.2.1 Air Inlet Requirements – United States (NFPA 54/ANSI Z223.1 & NFPA/ANSI 211)
When air is supplied from inside the building, the total required volume shall be the sum of the required
volume for all the appliances located in the mechanical room. Adjacent rooms furnished with fixed
openings communicating directly with the mechanical room are considered part of the required volume.
The minimum volume is 50 ft
The venting materials listed below are intended for the venting of gas burning
B-Vent Chimney
X X
X X
X X
No No
X X
X X
X X
No No
Under no circumstances shall the boiler room ever be under a negative
3
per 1000 Btu/hr (4.8 m
P-K THERMIFIC
®
Boiler Model
Single Wall Listed Gas
Metal Pipe Vent System
X X
X X
X X
No No
X X
X X
X X
No No
3
/kW) of installed appliance input capacity.
13
®
Gas-Fired Boiler
Special Gas UL 1738 listed
Vent System Cat II/III/IV
X
X
X
No X
X
X
X
No X